This invention provides capsules containing an emetic, which capsules can encapsulate a drug, wherein the amount of emetic and the amount of drug is such that the number of capsules needed to be ingested to cause emesis is fewer than the number of capsules needed to be ingested to cause overdose of the drug, so that if a person takes an overdose of the emetic encapsulated drug, he or she will vomit before the drug is absorbed by the body.
